Determination of Multicomponent System with Principal Component Analysis Method

Abstract

Abstract: The Principal component analysis (PCA) method for spectrophotometric determination of multicdmponent system is studied . The vector of each principal component was calculated by using gradually repeating substitution and the concentration of the unknown samples is predicted by the established mathematical model. Two demonstrations of colour reaction system are given and the results of quantitative analysis with PCA are better than those of classical least squares method.

Key words: Principal component analysis, Multicomponent analysis, Spectrophotometry, 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol

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Ni Yongnian . Determination of Multicomponent System with Principal Component Analysis Method[J]. Chem. J. Chinese Universities, 1990, 11(9): 1016.

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Determination of Multicomponent System with Principal Component Analysis Method

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